You can click Finish at the top or bottom
of the Create Watch page to complete the watch
rule. Or you can continue on to specify an alarm option for the watch
and select notifications to associate with the watch. To continue,
click Next.

On the Create Watch page, select an alarm
option. This setting determines when a watch expression will be
re-evaluated after it evaluates to true. If a watch is configured as
an alarm, then the watch will not be evaluated again until the alarm
is reset.

Select Don't use an alarm if you want
the watch expression to continue to be evaluated without resetting
it.

Select Use a manual reset alarm if
you want to indicate manually when you want the watch expression to
be re-evaluated

Select Use an automatic reset alarm
if you want the watch expression to be re-evaluated after a
specified time. If you select this option, you must also enter the
reset period (in seconds).